Calculate the amount of heat needed to boil 64.7 g of benzene (c6h6), beginning from a temperature of 41.9 c . round your answer to significant digits. also, be sure your answer contains a unit symbol.

The amount of heat needed is = 4.3kJ

Explanation:

Amount of heat H = M × C × ΔT

M= mass of benzene = 64.7g

C= specific heat capacity = 1.74J/gK

ΔT = T2-T1

Where T1 is initai temperature = 41.9C

T2 is the final temperature( boiling point of benzene) = 80.1C

H= 64.7×1.74×80.7

H= 4300J

H=4.3kJ

Therefore, the amount of heat needed is 4.3kJ

the answer would be c

it's c. elements are placed in rows based on how may valencies electrons have.